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Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 DEF

In this form of transport detector for h.p.l.c. [high-performance liquid chromatography], the eluate is deposited upon a fine stainless steel wire that has been cleaned by being heated at 850°C. The volatile solvent is evaporated and the solute oxidized at 700-800°C in air to a mixture of carbon dioxide and water. The oxidation products are mixed with hydrogen and passed over a nickel catalyst at 330°C to give methane which is burnt in a flame ionization detector to give an electrical signal that can be amplified and recorded. The detector gives a linear response over a wide concentration range [...] The sensitivity has been improved and the noise level reduced by using either a ceramic (kaolin) or ceramic-metal (kaolin and copper) coating to the wire.  1, fiche 1, Anglais, - wire%20transport%20detector

Fiche 1,  Justifications,  Français

Fiche 1,  Justifications,  Espagnol